Home / 3,017.80-4,521.84-1,861.12

Finding the Fourth Proportional to 3,017.80, 4,521.84 and 1,861.12

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Solution

The fourth proportional to 3,017.80, 4,521.84 and 1,861.12 is: 2,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.80 : 4,521.84 = 1,861.12 : x
  2. Step 2: Convert to fraction form
    3,017.80/4,521.84 = 1,861.12/x
  3. Step 3: Cross multiply
    3,017.80x = 4,521.84 × 1,861.12
  4. Step 4: Simplify right side
    3,017.80x = 8,415,686.86
  5. Step 5: Solve for x
    x = 8,415,686.86/3,017.80
  6. Step 6: Final answer
    x = 2,788.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.